421748 has 6 divisors (see below), whose sum is σ = 738066. Its totient is φ = 210872.

The previous prime is 421741. The next prime is 421783. The reversal of 421748 is 847124.

It can be written as a sum of positive squares in only one way, i.e., 252004 + 169744 = 502^2 + 412^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (421741) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 52715 + ... + 52722.

It is an arithmetic number, because the mean of its divisors is an integer number (123011).

2⁴²¹⁷⁴⁸ is an apocalyptic number.

It is an amenable number.

421748 is a deficient number, since it is larger than the sum of its proper divisors (316318).

421748 is a wasteful number, since it uses less digits than its factorization.

421748 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 105441 (or 105439 counting only the distinct ones).

The product of its digits is 1792, while the sum is 26.

The square root of 421748 is about 649.4212808339. The cubic root of 421748 is about 74.9924733188.

The spelling of 421748 in words is "four hundred twenty-one thousand, seven hundred forty-eight".